Bobbi Kristina Brown was discovered in a bathroom at her Atlanta townhouse a year ago Sunday.

Ayear after Bobbi Kristina Brown was found unconscious and face down in the bathtub of her Atlanta, Georgia townhouse, fans, relatives, and admirers alike are still awaiting details about just what happened to the 22-year-old daughter of pop diva Whitney Houston and R&B crooner Bobby Brown.

But Bobbi Kristina’s aunt, Leolah Brown, wrote a lengthy Facebook post on Wednesday saying that she knows exactly what happened to her and will reveal it in a forthcoming book.

One thing for sure is that authorities in Fulton County, Georgia say they know how Bobbi died, but a court order has blocked the release of that information until further notice.

We also know that her estate has hit long-time boyfriend, Nick Gordon, with a $40 million wrongful death lawsuit, claiming that he fought with Brown on January 31, gave her a toxic cocktail, and then put her face down in the tub of water in which he later claimed to find her.

Gordon’s lawyers have called for the suit to be dropped, calling the accusations “slanderous.”

The grisly discovery of Bobbi Kristina came within days of the three-year anniversary of her mother’s death. Whitney Houston was found dead in the bathtub of her suite at the Beverly Hilton on Feb. 11, 2012. The official coroner’s report showed that she had accidentally drowned. Heart disease and cocaine use were listed as contributing factors.

Bobbi Kristina never regained consciousness and died July 26 of last year after an extended stay in hospice care. Indeed, rumors and familial infighting and recriminations have surrounded the death.

Further adding to the mystery are charges against a woman accused of impersonating a nurse at the facility where Bobbi Kristina Brown died. The woman, Taiwo Bolatito Sobamowo, has been arrested and charged with multiple counts of fraud, but a police report obtained by The Associated Press gave no indication that she affected Brown’s care in any way.

Gordon, who has not been charged in the death, has taken to social media to proclaim his innocence and profess his love for the one-time reality television star. He was criticized over the Christmas holiday for posting a Photoshopped image of him and Bobbi Kristina.